I would highly recommend the book Illusions, by Richard Bach. Before I was really a Christian, that book is where I got most of my spiritual guidance, and now that I'm deep in my faith, it's still a source of great nuggets of wisdom! I've read it more times than I can count; sometimes all the way through, sometimes just opening to a random page and reading a chapter or a page. It's very hard to describe without giving too much away, but the full title is "Illusions: The Adventures of a Reluctant Messiah." It's a very clear and somewhat short book, and it's one of those that you never stop thinking about.
On the topic of sci-fi, I'd recommend anything by Isaac Asimov. Much of the sci-fi I read (and much of it that I write) is short stories. One of my favorite collections is "The Twilight Zone: The Original Stories". As the title suggests, it's a collection of many of the stories that Rod Serling turned into Twilight Zone episodes.
I recommend comic books as well; "Pearls Before Swine" and "Dilbert" are two of my favorites.
I'm not in the state anymore that I need to take breaks from life, thanks be to God, but one of my main hobbies is playing musical instruments. I do trumpet, learning French horn, a bit of drums, piano, and keyboard, and I just got a sweet new electric bass. Playing instruments is great, because it's something you can constantly keep improving at, and there's no rules you have to follow; making stuff up as you go is great.
And, of course, posting on this forum is very satisfying. God seems to have given me an unusually strong gift of wisdom, and I love coming here and sharing it with the world.